303049 Hardened Chrome Liner; 6 Inch, EWCO 446
Part 303049 is a 6 inch hardened chrome liner for the EWCO 446 (W-446) pump. The cylinder liner is the replaceable bore in which the piston reciprocates and is a primary wear surface in the fluid end. It is supplied as an aftermarket replacement for part number 303049, matching the original part's form and fit. The liner weighs about 37.80 lb and measures roughly 9.50 x 10.00 x 9.50 inches.
What it is
This is a replacement part for the listed reciprocating pump models, supplied to match the original component's form and fit.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 37.80 lb (≈ 17.15 kg, converted) |
| Width | 9.50 in / 24.1 cm |
| Height | 10.00 in / 24.5 cm |
| Depth | 9.50 in / 24.1 cm |
Manufacturer technical notes
303049 Hardened Chrome Liner (6" EWCO 446), forged from high chromium cast iron with thick chrome plating (ASTM B488 SC-2), heat-treated to HRC≥62 hardness, salt spray tested 1000hrs corrosion-free, API 7K compliant mud pump compatibility, ISO 15154-E erosion resistance, direct replacement for Buckhorn 303049.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303049.
FAQ
- Which pump does liner 303049 fit?
- It fits the W-446 pump (EWCO 446), in the 6 inch size.
- What does the cylinder liner do?
- It provides the replaceable bore the piston reciprocates in and is a primary wear surface in the fluid end, matched to the pump's bore size.
- What part number does this replace?
- It is an aftermarket replacement for part number 303049, supplied to match the original part's form and fit.
Related parts
All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.
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